Finnair Baggage Allowance: Cabin Bags, Checked Baggage & Fees
Flying with Finnair? Check cabin baggage, checked-baggage allowances and fare differences before you travel.
Finnair distinguishes between a small under-seat bag and a larger carry-on bag, with the allowance depending on ticket type. The small bag can measure up to 40 × 30 × 15cm, while the larger carry-on can measure up to 55 × 40 × 23cm. Economy and Premium Economy cabin allowances are generally limited to 8kg combined where the carry-on is included.
Cabin baggage is one of the first things to check before travelling with Finnair, because the number of pieces, permitted size and weight can differ by fare or travel class. The current allowance is summarised as follows: Small bag: 40 × 30 × 15cm. Carry-on: 55 × 40 × 23cm where included. Economy/Premium combined cabin weight usually 8kg; Business 12kg.. Your smaller personal item, where permitted, should be suitable for stowage beneath the seat, while the main cabin bag must fit safely in the overhead locker.
Checked baggage with Finnair also depends on the ticket you have purchased rather than simply the destination. The current headline allowance is: Superlight/Light fares generally exclude checked baggage; Classic/Flex usually include baggage, with route-specific piece allowances.. Lower-cost or light fares can exclude checked baggage altogether, while flexible and premium fares often provide a larger allowance. Always check the baggage entitlement attached to the individual booking before packing.
Size and weight are separate limits. A suitcase can be within the permitted dimensions but still be overweight, or it can be light enough while exceeding the airline's dimensional limit. Gate-checked cabin bags and extra checked baggage attract charges; route and ticket type determine pricing.. Additional, overweight or oversized baggage can therefore attract extra charges or different handling requirements.
Cabin baggage must also comply with airport-security and dangerous-goods rules, which are separate from Finnair's own baggage allowance. Liquids, gels, pastes and aerosols may be subject to the familiar 100ml container restrictions depending on the departure and connecting airports, while power banks and spare lithium batteries normally need to remain in cabin baggage rather than being packed in the hold.
This guide explains Finnair's cabin and personal-item rules, checked-baggage allowances, fare and travel-class differences, liquid restrictions, additional and excess baggage, and the practical points most likely to cause problems at the airport. If another airline operates part of your journey, check that carrier's rules as well because allowances can differ across a multi-airline itinerary.
Free Cabin Bag Size
Small bag: 40 × 30 × 15cm
Carry-on: 55 × 40 × 23cm where included
Economy/Premium max weight8kg
Business max weight12kg
Checked Baggage Allowance
Superlight/Light
Generally exclude checked baggage
Classic/Flex
Usually include baggage, with route-specific piece allowances
Additional Baggage Fees
Gate-checked cabin bags and extra checked baggage attract charges; route and ticket type determine pricing.
Key Finnair Baggage Tips
Economy/Premium Economy cabin weight is generally 8kg combined.
Business cabin weight is generally 12kg combined.
Superlight may include only the small bag.
Check the allowance on your Finnair booking before you pack. Fare, cabin and route differences can materially change what is included.
Measure bags externally, including wheels, handles and protruding pockets, rather than relying only on the manufacturer's stated suitcase size.
Weigh cabin and checked baggage at home. A bag can be within the size limit but still attract charges if it exceeds the permitted weight.
Keep the personal item genuinely small enough to fit beneath the seat if the airline requires under-seat stowage; do not treat it as a second full-size cabin bag.
If you already know you need extra checked baggage, add it before reaching the airport where the airline offers advance purchase; airport excess-baggage charges can be higher.
Where standard airport liquid rules apply, the container size matters: a partly used bottle larger than 100ml can still be rejected at security.
Pack full-size toiletries in checked baggage when appropriate, while keeping medication and anything needed during the journey accessible in the cabin.
Keep power banks and spare lithium batteries in cabin baggage, protected against short circuits, rather than placing them in the hold.
Cabin baggage sizes explained
Check the bag dimensions, weight limits and fare-specific inclusions before you travel, particularly where different fare families offer different baggage allowances.
Finnair baggage allowance by fare
Baggage allowances can vary by fare, route and travel class. Always check the allowance shown on your booking before you travel.
Superlight / Light
Classic
Cabin baggage
Small bag always included
Carry-on depends on ticket
Checked baggage
Generally not included
Best for
Short trips and travellers who pack very lightly.
Cabin baggage
Carry-on + small bag where applicable
Checked baggage
Usually included
Route-dependent number of pieces
Best for
Most leisure travellers wanting checked baggage included.
Flex
Cabin baggage
Carry-on + small bag
Checked baggage
Included
More flexible fare conditions
Best for
Travellers wanting baggage plus maximum ticket flexibility.
Checked baggage with Finnair: what you need to know
Finnair's checked-baggage allowance depends on fare, travel class and route.
Light and Superlight products generally exclude free checked baggage, while Classic and Flex fares usually include one or more pieces.
Long-haul allowances vary by market: some routes include one 23kg Economy bag, while Japan and certain other markets can include more.
Business Class checked pieces can weigh up to 32kg on eligible routes.
Finnair's checked-baggage entitlement can depend on the fare, travel class, route and the airline operating each sector. The allowance shown on your ticket or booking confirmation should therefore be treated as the final reference.
If your included allowance is not enough, additional baggage can usually be added where the airline offers this service. Arranging extra baggage before travel is generally preferable to discovering an excess at check-in.
A bag that exceeds the permitted weight, dimensions or number of pieces can be treated as excess, overweight or oversized baggage. Separate charges or handling restrictions may apply, and very heavy items may need to be repacked or carried as cargo.
For journeys involving another airline, do not assume the same checked-baggage rules apply throughout. Codeshare and interline itineraries can be governed by the operating carrier or the most-significant carrier under the applicable baggage rules.
Before travelling, check the baggage allowance attached to your specific Finnair booking, particularly if you have changed your ticket, upgraded your cabin or added a connecting flight.
Finnair cabin baggage rules: liquids, extras and restrictions
Finnair's small bag can measure up to 40 × 30 × 15cm and is designed to fit beneath the seat.
Where a larger carry-on is included, it can measure up to 55 × 40 × 23cm.
Economy and Premium Economy cabin baggage is generally limited to 8kg combined, while Business Class has a higher combined allowance of 12kg.
A gate fee can apply if you bring a larger carry-on that is not included in your ticket.
Airport-security liquid rules apply separately.
Cabin baggage must be small and light enough to be safely stowed in the overhead locker or, for a personal item, beneath the seat in front. Published measurements normally include wheels, handles and other protruding parts unless the airline explicitly states otherwise.
For journeys departing the UK, liquids, gels, pastes and aerosols are subject to the security rules at the departure airport. Where the standard 100ml rule applies, individual containers must normally hold no more than 100ml and be presented in the permitted transparent resealable liquids bag.
Typical products affected include toothpaste, deodorant, shampoo, conditioner, shower gel, sun cream, skincare and cosmetics. Medication, baby food and certain medical items can qualify for security exemptions when required for the journey, although supporting evidence may be requested.
Power banks and spare lithium batteries should be carried in cabin baggage rather than checked baggage and protected against short circuits. Other dangerous or restricted items can be prohibited entirely or limited to either cabin or checked baggage.
Finnair staff or airport handling agents may check cabin baggage at check-in or the gate. A bag that exceeds the permitted number, size or weight can be placed in the hold and additional charges may apply.
Common Finnair cabin baggage mistakes to avoid
Assuming every fare includes the same cabin-baggage allowance
Forgetting to include wheels and handles when measuring a bag
Using a personal item that is too large to fit beneath the seat
Packing liquids in containers larger than 100ml where standard airport restrictions apply
Assuming a partly empty large liquid container is security compliant
Packing power banks or spare lithium batteries in checked baggage
Ignoring different baggage rules on a partner-operated or connecting flight
Arriving at the airport without checking the allowance shown on the booking
Finnair cabin baggage rules: liquids, extras and restrictions
Finnair's small bag can measure up to 40 × 30 × 15cm and is designed to fit beneath the seat.
Where a larger carry-on is included, it can measure up to 55 × 40 × 23cm.
Economy and Premium Economy cabin baggage is generally limited to 8kg combined, while Business Class has a higher combined allowance of 12kg.
A gate fee can apply if you bring a larger carry-on that is not included in your ticket.
Airport-security liquid rules apply separately.
Cabin baggage must be small and light enough to be safely stowed in the overhead locker or, for a personal item, beneath the seat in front. Published measurements normally include wheels, handles and other protruding parts unless the airline explicitly states otherwise.
For journeys departing the UK, liquids, gels, pastes and aerosols are subject to the security rules at the departure airport. Where the standard 100ml rule applies, individual containers must normally hold no more than 100ml and be presented in the permitted transparent resealable liquids bag.
Typical products affected include toothpaste, deodorant, shampoo, conditioner, shower gel, sun cream, skincare and cosmetics. Medication, baby food and certain medical items can qualify for security exemptions when required for the journey, although supporting evidence may be requested.
Power banks and spare lithium batteries should be carried in cabin baggage rather than checked baggage and protected against short circuits. Other dangerous or restricted items can be prohibited entirely or limited to either cabin or checked baggage.
Finnair staff or airport handling agents may check cabin baggage at check-in or the gate. A bag that exceeds the permitted number, size or weight can be placed in the hold and additional charges may apply.
Common Finnair cabin baggage mistakes to avoid
Assuming every fare includes the same cabin-baggage allowance
Forgetting to include wheels and handles when measuring a bag
Using a personal item that is too large to fit beneath the seat
Packing liquids in containers larger than 100ml where standard airport restrictions apply
Assuming a partly empty large liquid container is security compliant
Packing power banks or spare lithium batteries in checked baggage
Ignoring different baggage rules on a partner-operated or connecting flight
Arriving at the airport without checking the allowance shown on the booking